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Impact of particle-scale models on CFD-DEM simulations of biomass pyrolysis React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-10 Kusum Kumar, Himanshu Goyal
The performance of biomass pyrolysis reactors depends on the interplay between chemical reactions, heat and mass transfer, and multiphase flow. These processes occur over a wide range of scales ranging from molecular to reactor level. Accurate predictions of the reactor behavior necessitate integrating adequate kinetics and particle-scale biomass devolatilization models with reactor-level CFD simulations
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Pyrolysis and gasification of 5–20 mm tyre rubber cubes under carbon dioxide flow React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-10 Arnold Jansen, Jaco van der Walt, Jabulani Gama, Philip Crouse
The thermal behaviour of waste tractor tyre tread was investigated using 5-, 10-, 15- and 20 mm cubes and video recording of the process – an experimental approach for which no precedent could be found in the literature. Pyrolysis and gasification under CO2 flow in the range of 400 ℃ to 1 000 ℃ were studied using a pre-heated tube furnace under near-isothermal reaction conditions. The video-graphic
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Extraction of the intrinsic rate constant for a photocyclization reaction in capillary microreactors using a simplified reactor model React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-09 Jun Li, Helena Šimek Tosino, Bradley P Ladewig, Nicole Jung, Stefan Braese, Roland Dittmeyer
In this work, a simple reactor model for evaluating the intrinsic rate constant of a photocyclization reaction is presented. The photoreaction was performed in a standardized capillary microreactor that ensures isothermal and uniform irradiation conditions. The effects of residence time and incident light intensity on the reaction performance were studied, and a reaction kinetic model was established
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State-of-the-art and challenges towards a MOlecular Solar Thermal (MOST) energy storage device React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-09 Alberto Giménez-Gómez, Lucien Magson, Cecilia Merino-Robledillo, Sara Hernáez-Troya, Nil Sanosa, Diego Sampedro, Ignacio Funes-Ardoiz
The current global energy scenario calls for the urgent replacement of fossil fuels for alternative, environmentally affordable, abundant and cheap energy sources. Among the different options available, MOlecular Solar Thermal (MOST) systems have emerged in the last years as a promising alternative. While this technology has already shown a great potential under lab conditions, some difficulties remain
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Synthesis of Acrylonitrile-Butadiene-Styrene Copolymers Through Interface-Initiated Room-Temperature Polymerization React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-07 Shijie Wu, Yao Fu, Soham Das, Miles Pamueles Pamueles Duan, Tan Zhang
Acrylonitrile-butadiene-styrene (ABS) copolymers were synthesized in emulsions and silica-containing emulsion gels at 20, 40, and 60 °C. The room-temperature polymerization was achieved by decomposing 2,2’-azobisisobutyronitrile (AIBN) at oil-water interfaces. The decomposition rate constants of the AIBN decomposed in bulk phases and at interfaces were measured for the first time. At room temperatures
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Design of Microcombustor–Thermoelectric Coupled Device using CFD-based Multiphysics Model for Power Generation React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-02 Neha Yedala, Niket S. Kaisare
Catalytic combustion in micro-reactors can be coupled with thermoelectric power generator (TEG) modules for distributed and portable power generation, especially in niche applications. Efficiency of such an integrated device can be improved by operating the microcombustor at lean flowrates or using more efficient heat sinks. However, these lead to incomplete fuel conversion and eventually extinction
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Thermal/Photochemical Micro-Flow Probe System for Direct C-H Bond Functionalization of Biologically Active Molecules React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-02 Abhilash Rana, Ruchi Chauhan, Ajay K. Singh
Over the past few decades, many solar radiation (Heat + Light)-based reactions have been developed that allow utilization of the thermal/light to facilitate chemical reactions. However, fluctuating light intensity, cloud, night, global location etc. render the system less efficient (approximately 33%, being workable for only 8 h out of 24 h). Radiation-induced direct C-H activation with aqueous ammonia
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High-yield, fast, and green synthesis of acridine derivatives using a Co/C catalyst from rice husks with a microwave-assisted method React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-02 Phat Ngoc Nguyen, Gia-Linh Ngoc Nguyen, The-Anh Trinh Duong, Mai-Phuong Thi Le, Linh Phi Nguyen, Jinsoo Kim, Phuong Hoang Tran, Huynh-Hoa Thi Truong, Hai Truong Nguyen
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Highly modular PDMS microwave-microfluidic chip reactor for MAOS applications React. Chem. Eng. (IF 3.9) Pub Date : 2024-05-02 Laura Y. Vázquez-Amaya, Matko Martinic, Bart Nauwelaers, Erik V. Van der Eycken, Tomislav Markovic, Upendra K. Sharma
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Coupling catalytic bed fluidization with impeller rotation for improved hydrodynamic characterization of Berty reactors React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-30 Mengmeng Cui, Shekhar Kulkarni, Yacoub-Yousef Abu-Naaj, Stefan Wagner, Claudia Berger-Karin, Jan Lennart Weber, Anton Nagy, Pedro Castaño
We developed an integrated modeling framework to capture the gas-solid mixing patterns in internal circulating Berty reactors operating under batch fluidized mode. Our framework combines computational fluid dynamics for the gas phase with impeller rotation and computational particle fluid dynamics for solid fluidization in the catalyst basket. We proposed several key hydrodynamic indicators for the
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Efficient dimerization of perfluoroolefin catalyzed by strong nucleophilic bifunctional ionic liquids React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-30 Minmin Liu, Bingxi Song, Yanhui Hu, Xianglei Meng, Renzheng Jiang, Yanyan Diao, Yuting Song
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Immobilization of enzymes on polymers with upper critical solution temperature: new engineering of enzymes for biocatalysis React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-29 Lin Huang, Xi-Rui Li, Zhi Li
Polymers with upper critical solution temperature (UCST) can find a promising application in biocatalysis by immobilized enzymes, in that UCST-type polymer-immobilized enzymes use lower temperatures for biocatalyst separation than for homogeneously biocatalytic reactions, so as to ensure prevention of the immobilized enzymes from deactivation as well as producing high biocatalytic performance. In this
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Synthesis and photocatalytic performance investigation of an NH4Cl-assisted two-step calcination method for modified g-C3N4 React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-27 Xinyue Zhang, Lin Yuan, Yu Zhang, Xinyu Shu, Renjie Li, Qunfen Deng, Zilong Zhang, Rui Yang
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Insights into molecular accessibility in catalyst and sorbent materials using NMR porosity measurements React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-26 J. A. Ward-Williams, C. M. Guédon, M. D. Mantle, A. J. Sederman, L. F. Gladden
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Parameter investigation of an organic–inorganic hybrid resin for a 3D-printed microchannel heat exchanger React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-26 Sunjae Lee, Amirreza Mottafegh, Dong-Pyo Kim
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Optimizing CO2 methanation: effect of surface basicity and active phase reducibility on Ni-based catalysts React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-24 Marie-Nour Kaydouh, Nissrine El Hassan, Ahmed I. Osman, Hamid Ahmed, Naif Alarifi, Anis H. Fakeeha, Abdulrahman Bin Jumah, Ahmed S. Al-Fatesh
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Experimental Investigation of Mass Transfer in NH3 SCR Over Self-Supporting Cu-ZSM-5 Foam React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-23 Risha Raju, Kuruvilla Joseph, K. Prabhakaran, A. Salih
Selective catalytic reduction of NOx by NH3 is an emerging technology for emission control applications worldwide. The development of structured catalysts for process intensification is of growing interest in catalytic processes due to heat and mass transfer limitations at an industrial scale. Self-supported foam catalysts have increased active phase load in the structured reactor, without additional
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Understanding the impact of small vanadia clusters and their coverage effects on undoped and Ni-doped ceria nanorod supports on propane oxidative dehydrogenation React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-23 Anoop P. Pushkar, Jithin John Varghese
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Correction: Applying quantum mechanics to deconvolute benchtop 1H NMR reaction data React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-17 Jiayu Zhang, Tristan Maschmeyer, Ben Shapiro, Sunil Babu Paudel, Matthew C. Leclerc, Jason E. Hein
Correction for ‘Applying quantum mechanics to deconvolute benchtop 1H NMR reaction data’ by Jiayu Zhang et al., React. Chem. Eng., 2024, https://doi.org/10.1039/D3RE00583F.
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Synthesis and kinetic study of 1,3,2-dioxathiolane 2,2-dioxide in microreactors React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-17 Ting Wang, Junnan Wang, Chengxiang He, Zhongdong Wang, Yating Li, Chunying Zhu, Youguang Ma, Taotao Fu
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Generation of nitrogen by means of electrochemical oxygen depletion React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-16 Dominik Sachse, Basil Noha Chelachottil, Andreas Glüsen, Martin Müller, Uwe Rau, Ralf Peters
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Efficient removal of dibutyl phthalate from aqueous solutions: recent advances in adsorption and oxidation approaches React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-12 Yaqi Wang, Jiawei Wu, Wenju Zhang, Linyun Zhong, Dan Zhang, Siqi Yan, Junyou Shi
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High-efficiency non-thermal plasma synthesis of imine macrocycles React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-08 Patrycja Roszkowska, Abbie M. Scholes, James L. Walsh, Timothy L. Easun, Anna G. Slater
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A sequential lumped kinetic modelling approach for the co-pyrolysis of plastic mixtures with a heavy refinery intermediate product in a tubular reactor React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-10 Sebastian-Mark Lorbach, Andreas E. Lechleitner, Teresa Schubert, Markus Lehner
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On a seamlessly replicable circular photoreactor for lab-scale continuous flow applications React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-09 Yi-Hsuan Tsai, Martin Cattoen, Guillaume Masson, Gabrielle Christen, Lisa Traber, Morgan Donnard, Frédéric R. Leroux, Guillaume Bentzinger, Sylvain Guizzetti, Jean-Christophe M. Monbaliu
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Catalytic degradation of pine sawdust over heterotopic Ca–Fe and HZSM-5 to produce aromatic hydrocarbons React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-08 Huifen Kang, Xintong Guo, Mei An, Conghua Ma, Guozhang Chang, Qingjie Guo, Jingjing Ma
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Thermokinetic analyses of metal-sensitive reactions in a ceramic flow calorimeter React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-05 Soritz S., Sommitsch A., Irndorfer S., Brouczek D., Schwentenwein M., Priestley I. J. G., Iosub A. V., Krieger J. P., Gruber-Woelfler H.
Measuring the thermokinetic data of chemical reactions is an important part for chemical process development. However, some reactions are very sensitive to the presence of metals, limiting the use of standard materials for calorimeters. In this work we present a flow calorimeter employing a 3D printed ceramic reactor plate for the measurement of metal-sensitive reactions. The calorimeter was characterized
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Comprehensive study of lumped kinetic models and bio-oil characterization in microwave-assisted pyrolysis of Sargassum sp. React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-04 Teta Fathya Widawati, Muhammad Fuad Refki, Rochmadi, Joko Wintoko, Arief Budiman
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Determination of intermediates and products of the uranyl aerosol formation in UF6 hydrolysis in the gas phase React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-02 Christian Mark Salvador, Jason M. Richards, Shannon M. Mahurin, Meng-Dawn Cheng, Joshua A. Hubbard
The reaction pathway of hydrolysis of UF6 to form UO2F2 particles is an essential insight in nuclear fuel processing; however, it is still limited to theoretical calculations. Herein, we present the identification of the intermediates and products using various gas precursor concentrations and molecular beam mass spectrometer (MBMS). Compounds containing different uranium atom counts were identified
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Photochemical organocatalytic heteroarylation of anilines and secondary alicyclic amines in continuous-flow React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-03 Egor N. Boronin, Milena M. Svetlakova, Ilya I. Vorobyov, Yulia B. Malysheva, Yuri V. Polushtaytsev, Sergey N. Mensov, Andrey V. Vorotyntsev, Alexey Yu. Fedorov, Timothy Noël, Alexander V. Nyuchev
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Hydrogenolysis of furfuryl alcohol over CuCeMgAl mixed metal oxide catalysts derived from layered double hydroxides React. Chem. Eng. (IF 3.9) Pub Date : 2024-04-02 Zhihui Wang, Wenbo Li, Xinyao Fu, Chen Zhang, Wei Zhang, Long Huang, Cuiqing Li
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Enhancing mass transport to accelerate photoreactions and enable scale-up React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-28 Florian Gaulhofer, Markus Metzger, Alexander Peschl, Dirk Ziegenbalg
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Automated kinetic model identification via cloud services using model-based design of experiments React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-28 Emmanuel Agunloye, Panagiotis Petsagkourakis, Muhammad Yusuf, Ricardo Labes, Thomas Chamberlain, Frans L. Muller, Richard A. Bourne, Federico Galvanin
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TiO2 nanopowder and nanofilm catalysts in the disinfection and mineralization of S. aureus with solar-simulated radiation React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-26 Raed Shqier, Ahed Zyoud, Muath H. S. Helal, Heba Nassar, Raed Alkowni, Mohyeddin Assali, Shaher Zyoud, Naser Qamhieh, Abdul Razack Hajamohideen, Shadi Sawalha, Samer H. Zyoud, Hikmat S. Hilal
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New Editor-in-Chief for Reaction Chemistry & Engineering React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-26 Dionisios G. Vlachos, Maria Southall, Klavs F. Jensen
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Mass transport effects in gas-phase selective hydrogenation of 1,3-butadiene over supported Pd React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-26 Oscar E. Brandt Corstius, M. Kikkert, S. T. Roberts, E. J. Doskocil, J. E. S. van der Hoeven, P. E. de Jongh
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Novel TPMS carbon-based monolithic catalysts by three-dimensional printing for enhancement of nitrobenzene hydrogenation reaction React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-27 Haoyang Wang, Haoran Tian, Qi Zhang, Li Zhang
An additive manufacturing method (digital light procession) is proposed to fabricate carbon-based monolithic catalysts and is applied to nitrobenzene (NB) hydrogenation in a packed-bed micro-reactor. The geometric model of the integrated catalyst is gyroid, a triply periodic minimal surface structure without a dead zone and a large surface area. Compared with particle catalysts, monolithic catalysts
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Efficient aqueous-phase hydrogenation of m-xylylenediamine to 1,3-cyclohexandimethylamine over a highly active and stable ruthenium catalyst React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-26 Jing Guo, Heng Shao, Le Gao, Wancheng Ma, Wei Zhang, Long Huang, Haibin Chu
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Selective hydrogenation of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan over Ni–Ga intermetallic catalysts and its kinetic studies React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-26 Weixiao Sun, Fuzeyu Zhong, Xiaohu Ge, Wenyao Chen, Gang Qian, Yueqiang Cao, Xuezhi Duan, Xinggui Zhou, Jing Zhang
5-Hydroxymethylfurfural (HMF) has been listed as the “TOP 14” most important biomass-derived platform molecules, which can be converted into 2,5-bis(hydroxymethyl)furan (BHF) via selective hydrogenation of the carbonyl group on HMF. BHF is a crucial monomer for various industrially important polymerization and etherification processes. Noble metal catalysts have been reported to be highly active and
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Merging inline crystallization and pulsed flow operation to enable enantiospecific solid state photodecarbonylation React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-25 Bavo Vandekerckhove, Bart Ruttens, Bert Metten, Christian V. Stevens, Thomas S. A. Heugebaert
The enantioselective formation of C–C bonds is arguably one of the most important reactions in organic chemistry. While elegant solutions have been devised for the total synthesis of several natural products, active pharmaceutical ingredients (API), and related scaffolds, efficient methods that strive towards the principles of green chemistry remain highly desirable additions to the synthetic organic
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Performance of a helical insert in a commercial tubing as a passive micromixer to produce nanoparticles using an emulsification approach React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-21 Lucia Abengochea, Santiago Pina-Artal, Victor Gonzalez, Victor Sebastian
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Development of an automated platform for monitoring microfluidic reactors through multi-reactor integration and online (chip-)LC/MS-detection React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-20 Hannes Westphal, Simon Schmidt, Sanjay Lama, Matthias Polack, Chris Weise, Toni Oestereich, Rico Warias, Tanja Gulder, Detlev Belder
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Surface treatment of magnetite nanoparticle thin films with potassium phosphate for calcium phosphate precipitation React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-15 Reo Kimura, Kazuto Sugimoto, Iori Yamada, Motohiro Tagaya
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Scaling-up continuous production of mesoporous silica particles at kg scale: design & operational strategies React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-15 Rajashri B. Jundale, Jayesh R. Sonawane, Anil V. Palghadmal, Hemant Kumar Jaiswal, Hital S. Deore, Amol A. Kulkarni
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Thermodynamic driving forces for autoreduction of Cu sites in the zeolite SSZ-13 React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-15 Daniel J. Hutton, David H. Lopez, Florian Göltl
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Hydrothermal liquefaction of plastics: a survey of the effect of reaction conditions on the reaction efficiency React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-15 Matthijs Justin Boel, Hongqi Wang, Ahmad AL Farra, Laura Megido, José Manuel González-LaFuente, N. Raveendran Shiju
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The role of PAT in the development of telescoped continuous flow processes React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-14 Aoife M. Kearney, Stuart G. Collins, Anita R. Maguire
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Intensification of silver nanoparticle synthesis through continuous flow split and recombine microreactors React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-11 Amritendu Bhuson Ghosh, Rakesh Kumar, Arnab Atta
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Digital Pareto-front mapping of homogeneous catalytic reactions React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-11 Negin Orouji, Jeffrey A. Bennett, Sina Sadeghi, Milad Abolhasani
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At-line monitoring of hydrogen peroxide released from its photocatalytic and continuous synthesis React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-04 Anders Ø. Tjell, Lars-Erik Meyer, Barbara Jud, Selin Kara, Torsten Mayr
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Oxidative cleavage of lignin model substrates with Co(salen) catalyst: an experimental study on the effect of different reaction parameters in batch and continuous flow React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-07 Jonas Mortier, Christian V. Stevens, Joseph J. Bozell, Thomas S. A. Heugebaert
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Continuous flow oxidation of alkynes with KMnO4 for the synthesis of 1,2-diketone derivatives React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-06 Viktoria Velichko, Dario Cambie, Francesco Secci
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A scalable continuous photo-flow protocol for anaerobic oxidative cleavage of styrenes React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-06 Gaurav Prakash, Jagrit Grover, Pramod Pathak, Ankit Kumar Mittal, Pownthurai Balasubramaniam, Debabrata Maiti
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Co3O4 supported by ultrathin-layered graphitic carbon nitride for efficient electrocatalytic evolution of oxygen React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-06 Ruixue Luo, Xi Li, Youping Guo, Renchun Fu
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Recent progress in the development of catalysts for propane dehydrogenation in the presence of CO2 React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-06 Kai-Xin Li, Xin Cai, Hong-Bin Liu, Xin-Yu Liu, Yu-Ling Shan, Xiang Feng, De Chen
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Optimizing 5-hydroxymethylfurfural production from biomass carbohydrates: ionic liquid-catalyzed pathways in deep eutectic solvents under sonication and thermal conditions React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-05 Sabah Karimi, Chen Binglin, Hemayat Shekaari
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Selective catalytic oxidation of humins to carboxylic acids using the H4[PVMo11O40] Keggin-type polyoxometalate enhanced by alcohol doping and solubilizer React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-05 Tobias Esser, André Wassenberg, Dorothea Voß, Jakob Albert
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Design and synthesis of ammonia-modified reduced graphene oxide possessing more amino groups for methylene blue adsorption React. Chem. Eng. (IF 3.9) Pub Date : 2024-03-04 Chubei Wang, Jianwei Zhou, Fangfang Duo, Liangliang Chu, Mingliang Zhang, Chao Xu, Yanwei Zhao, Shuai Liu, Sitian Li
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Development of a continuous melt reactor for an acid-mediated decarboxylation React. Chem. Eng. (IF 3.9) Pub Date : 2024-02-27 Gordon Brezicki, Josef M. Maier, Julian P. Chesterman, Saad Bux, Brenden T. Herrera, Eric Van Dyke, Wesley Niswander, Jacob Saxon, Luke Rogers, D. Tyler McQuade
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A new synthetic method: pyromellitic dianhydride preparation by Ni–Mo/ZrO2 catalytic oxidation React. Chem. Eng. (IF 3.9) Pub Date : 2024-02-26 Shibo Pang, Baicheng Feng, Huifen Xin, Fei Song, Zhiguo Lv, Yan Jin, Zhida Zhang